STATUS.C
/*************************************************************************
**
** OLE 2.0 Sample Code
**
** status.c
**
** This file contains the window handlers, and various initialization
** and utility functions for an application status bar.
**
** (c) Copyright Microsoft Corp. 1992 - 1996 All Rights Reserved
**
*************************************************************************/
// Application specific include files
#include "outline.h"
#include "message.h"
#include "status.h"
// Current status message.
static char lpszStatusMessage[256];
// Window proc for status window.
LRESULT FAR PASCAL StatusWndProc
(HWND hwnd, unsigned message, WPARAM wParam, LPARAM lParam);
// List of all constant messages.
static STATMESG ControlList[2] =
{
{ STATUS_READY, "Ready." },
{ STATUS_BLANK, " " }
};
// List of all system menu messages.
static STATMESG SysMenuList[16] =
{
{ SC_SIZE, "Change the size of the window." },
{ SC_MOVE, "Move the window." },
{ SC_MINIMIZE, "Make the window iconic." },
{ SC_MAXIMIZE, "Make the window the size of the screen." },
{ SC_NEXTWINDOW, "Activate the next window." },
{ SC_PREVWINDOW, "Activate the previous window." },
{ SC_CLOSE, "Close this window." },
{ SC_VSCROLL, "Vertical scroll?" },
{ SC_HSCROLL, "Horizontal scroll?" },
{ SC_MOUSEMENU, "A menu for mice." },
{ SC_KEYMENU, "A menu for keys (I guess)." },
{ SC_ARRANGE, "Arrange something." },
{ SC_RESTORE, "Make the window noramally sized." },
{ SC_TASKLIST, "Put up the task list dialog." },
{ SC_SCREENSAVE, "Save the screen! Run for your life!" },
{ SC_HOTKEY, "Boy, is this key hot!" }
};
// Message type for popup messages.
typedef struct {
HMENU hmenu;
char string[MAX_MESSAGE];
} STATPOPUP;
// List of all popup messages.
static STATPOPUP PopupList[NUM_POPUP];
static UINT nCurrentPopup = 0;
/* RegisterStatusClass
* -------------------
*
* Creates classes for status window.
*
* HINSTANCE hInstance
*
* RETURNS: TRUE if class successfully registered.
* FALSE otherwise.
*
* CUSTOMIZATION: Change class name.
*
*/
BOOL RegisterStatusClass(HINSTANCE hInstance)
{
WNDCLASS wc;
wc.lpszClassName = "ObjStatus";
wc.lpfnWndProc = StatusWndProc;
wc.style = 0;
wc.hInstance = hInstance;
wc.hIcon = NULL;
wc.cbClsExtra = 4;
wc.cbWndExtra = 0;
wc.lpszMenuName = NULL;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = GetStockObject(LTGRAY_BRUSH);
if (!RegisterClass(&wc))
return FALSE;
return TRUE;
}
/* CreateStatusWindow
* ------------------
*
* Creates status window.
*
* HWND hwndMain
*
* RETURNS: HWND of status window if creation is successful.
* NULL otherwise.
*
* CUSTOMIZATION: Change class name.
*
*/
HWND CreateStatusWindow(HWND hWndApp, HINSTANCE hInst)
{
RECT rect;
int width, height;
HWND hWndStatusBar;
lstrcpy (lpszStatusMessage, ControlList[0].string);
GetClientRect(hWndApp, &rect);
width = rect.right - rect.left;
height = rect.bottom - rect.top;
hWndStatusBar = CreateWindow (
"ObjStatus",
"SvrStatus",
WS_CHILD |
WS_CLIPSIBLINGS |
WS_VISIBLE,
0, height - STATUS_HEIGHT,
width,
STATUS_HEIGHT,
hWndApp,
NULL,
hInst,
NULL
);
return hWndStatusBar;
}
/* DestroyStatusWindow
* -------------------
*
* Destroys status window.
*
* CUSTOMIZATION: None.
*
*/
void DestroyStatusWindow(HWND hWndStatusBar)
{
DestroyWindow(hWndStatusBar);
}
/* AssignPopupMessage
* ------------------
*
* Associates a string with a popup menu handle.
*
* HMENU hmenuPopup
* char *szMessage
*
* CUSTOMIZATION: None.
*
*/
void AssignPopupMessage(HMENU hmenuPopup, char *szMessage)
{
if (nCurrentPopup < NUM_POPUP) {
PopupList[nCurrentPopup].hmenu = hmenuPopup;
lstrcpy(PopupList[nCurrentPopup].string, szMessage);
++nCurrentPopup;
}
}
/* SetStatusText
* -------------
*
* Show the message in the status line.
*/
void SetStatusText(HWND hWndStatusBar, LPSTR lpszMessage)
{
lstrcpy (lpszStatusMessage, lpszMessage);
InvalidateRect (hWndStatusBar, (LPRECT)NULL, TRUE);
UpdateWindow (hWndStatusBar);
}
/* GetItemMessage
* --------------
*
* Retrieve the message associated with the given menu command item number.
*
* UINT wIDItem
* LPVOID lpDoc
*
* CUSTOMIZATION: None.
*
*/
void GetItemMessage(UINT wIDItem, LPSTR FAR* lplpszMessage)
{
UINT i;
*lplpszMessage = ControlList[1].string;
for (i = 0; i < NUM_STATS; ++i) {
if (wIDItem == MesgList[i].wIDItem) {
*lplpszMessage = MesgList[i].string;
break;
}
}
}
/* GetPopupMessage
* ---------------
*
* Retrieve the message associated with the given popup menu.
*
* HMENU hmenuPopup
* LPVOID lpDoc
*
* CUSTOMIZATION: None.
*
*/
void GetPopupMessage(HMENU hmenuPopup, LPSTR FAR* lplpszMessage)
{
UINT i;
*lplpszMessage = ControlList[1].string;
for (i = 0; i < nCurrentPopup; ++i) {
if (hmenuPopup == PopupList[i].hmenu) {
*lplpszMessage = PopupList[i].string;
break;
}
}
}
/* GetSysMenuMessage
* -----------------
*
* Retrieves the messages to correspond to items on the system menu.
*
*
* UINT wIDItem
* LPVOID lpDoc
*
* CUSTOMIZATION: None.
*
*/
void GetSysMenuMessage(UINT wIDItem, LPSTR FAR* lplpszMessage)
{
UINT i;
*lplpszMessage = ControlList[1].string;
for (i = 0; i < 16; ++i) {
if (wIDItem == SysMenuList[i].wIDItem) {
*lplpszMessage = SysMenuList[i].string;
break;
}
}
}
/* GetControlMessage
* -----------------
*
* Retrieves the general system messages.
*
*
* STATCONTROL scCommand
* LPVOID lpDoc
*
* CUSTOMIZATION: Add new messages.
*
*/
void GetControlMessage(STATCONTROL scCommand, LPSTR FAR* lplpszMessage)
{
UINT i;
*lplpszMessage = ControlList[1].string;
for (i = 0; i < 2; ++i) {
if ((UINT)scCommand == ControlList[i].wIDItem) {
*lplpszMessage = ControlList[i].string;
break;
}
}
}
/* StatusWndProc
* -------------
*
* Message handler for the statusbar window.
*
*
* CUSTOMIZATION: None
*
*/
LRESULT FAR PASCAL StatusWndProc
(HWND hwnd, unsigned message, WPARAM wParam, LPARAM lParam)
{
if (message == WM_PAINT) {
RECT rc;
HDC hdc;
PAINTSTRUCT paintstruct;
HPEN hpenOld;
HPEN hpen;
HFONT hfontOld;
HFONT hfont;
HPALETTE hpalOld = NULL;
POINT point;
BeginPaint (hwnd, &paintstruct);
hdc = GetDC (hwnd);
GetClientRect (hwnd, (LPRECT) &rc);
hpenOld = SelectObject (hdc, GetStockObject (BLACK_PEN));
MoveToEx (hdc, 0, 0, &point);
LineTo (hdc, rc.right, 0);
SelectObject (hdc, GetStockObject (WHITE_PEN));
MoveToEx (hdc, STATUS_RRIGHT, STATUS_RTOP, &point);
LineTo (hdc, STATUS_RRIGHT, STATUS_RBOTTOM);
LineTo (hdc, STATUS_RLEFT-1, STATUS_RBOTTOM);
hpen = CreatePen (PS_SOLID, 1, /* DKGRAY */ 0x00808080);
SelectObject (hdc, hpen);
MoveToEx (hdc, STATUS_RLEFT, STATUS_RBOTTOM-1, &point);
LineTo (hdc, STATUS_RLEFT, STATUS_RTOP);
LineTo (hdc, STATUS_RRIGHT, STATUS_RTOP);
SetBkMode (hdc, TRANSPARENT);
SetTextAlign (hdc, TA_LEFT | TA_TOP);
hfont = CreateFont (STATUS_THEIGHT, 0, 0, 0, FW_NORMAL, FALSE, FALSE,
FALSE, ANSI_CHARSET, OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH | FF_DONTCARE, "MS Sans Serif");
hfontOld = SelectObject(hdc, hfont);
TextOut (hdc, STATUS_TLEFT, STATUS_TTOP,
lpszStatusMessage,
lstrlen(lpszStatusMessage));
// Restore original objects
SelectObject (hdc, hfontOld);
SelectObject (hdc, hpenOld);
DeleteObject (hpen);
DeleteObject (hfont);
ReleaseDC (hwnd, hdc);
EndPaint (hwnd, &paintstruct);
return 0;
}
else {
return DefWindowProc(hwnd, message, wParam, lParam);
}
}